SsangYong Rexton. Service manual — part 406
SSANGYONG Y200
1F1-40 M162 ENGINE CONTROLS
PURGE CONTROL VALVE
YAD1F300
The fuel vaporization control system is in stalled to inhibit the fuel vaporized gas from discharging into the
atmosphere.
The fuel vaporized gas that is accumulated in the canister abstracts through the purge control valve purification
d u r i n g t h e e n g i n e c o m b u s t i o n ( e x c e p t t h e d e c r e a s i n g m o d e ) a n d c o o l a n t t e m p e r a t u r e o f o v e r
80 ° C. For this reason, the Engine Control Module (ECM) transacts the engine speed, air inflow quantity, coolant
temperature, and intake temperature.
The purge control valve is activated by the ECM frequency according with the engine rotating speed to adjust the
purification rate. The purification rate is determined by the continuous valve opening interval.
The purge control valve is activated by the ECM for the following conditions:
•
Coolant temperature of over 80 ° C
•
Engine speed of over 1,000 rpm
•
2 minutes after starting
•
When the fuel cut-off mode is not activated
1 Purge Control Valve
2 Line to Engine
3 Line to Conister
M162 ENGINE CONTROLS 1F1-41
SSANGYONG Y200
YAD1F310
Failure
Code
Description
Trouble Area
Maintenance Hint
Purge control valve
short circuit to battery
Purge control valve
short circuit to ground
or open
Purge control circuit
malfunction
When short circuit to power
source
When short circuit to ground
or open circuit or open with
bad contact
When malfunction of purge
control : not work vale
•
Inspection the ECM pin 34 about short
circuit or open with bad contact.
•
Inspection the source power of valve
•
Inspection the purge control solenoid
vale
•
Inspection the ECM
40
41
54
YAD1F0J0
Specified Value
0.3 ~ 0.5 A
4. Remove the line to canister and measure the
pressure with the vacuum pressure gauge.
Test
1. Maintain the normal temperature and idling state by
operating the engine.
2. Connect the ECM terminal No. 11 and No. 34 and
check for normal operation through the output waves
using oscilloscope.
Notice: Test during purge control valve operation
after the minimum of 1 minute after the engine
turned on.
3. Connect the ECM terminal No. 34 and No.10 and
check for current consumption during the ignition
switch ON.
Specified Value
> 500 mbar
(after approx. 1 min.)
purge control valve
operates at this time
Notice: Test while at normal temperature and at
idling state by operating the engine.
SSANGYONG Y200
1F1-42 M162 ENGINE CONTROLS
FUEL RAIL
YAD1F320
1 Injector Connector
2 Injector
3 Fuel Rail
4 Fuel Supply Line
5 Fuel Return Line
6 Bolt
7 Vacuum Hose
8 O-Ring
M162 ENGINE CONTROLS 1F1-43
SSANGYONG Y200
YAD1F330
Fuel Pressure Test
Tools Required
103 589 00 21 00 Fuel Pressure Gauge
1. Turn the ignition switch to “OFF” position.
2. Remove the fuel pressure test connector.
3. Connect the fuel pressure gauge to the fuel pressure
test connector.
4. Test the fuel pressure at idling by operating the
engine using the fuel pressure gauge 103 589 00
21 00.
Internal Leakage Test
1. Connect thefuel pressure gauge 103 589 00 21 00
to the fuel pressure test connector.
2. Stop the engine for approximately 30 minutes and
then check the fuel pressure changes.
5. Replace the pressure regulator diaphragm if out of
the specification.
YAD1F340
Vacuum Hose Connected (bar)
Vacuum Hose Disconnected (bar)
3.2 ~ 3.6
3.7 ~ 4.2
Fuel pressure (bar)
2.5
3. If there is no change in fuel pressure and maintain
the following pressure over 30 minutes, it is normal.
Pressure change
Fuel pressure
drops slowly
Fuel pressure
drops rapidly
•
Fuel leakage at the
injector
•
Faulty fuel pressure
regulator’s
diaphragm and O-ring
•
Faulty check valve in
the fuel pump
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